Ship&#39;s anchor



A. E. 'OSBORN ET AL Oct. 26 1926.

SHIP S ANCHOR Filed Jan. 3, 1924 2 Sheets-Sheet 1 yrraAA fy V r1,604,848 A. E. OSBORN ET AL SHIP'S ANCHOR Filed Jan. 5. 1924 2Sheets-Sheet 2 Fatented Get. 26, 1923.

UNITED raters rarest ries.

ARTHUR EDVIARD OSBORN AND WILLIAM NORMAN, OF DUDLEY, ENGLAND, AS-

SIGNORS TO N. HINGLEY & SONS LIMITED, OF DUDLEY, ENGLAND, A LIMITEDLIABILITY COMPANY OF ENGLAND.

SHIPS ANCHGR.

Application filed. January 3, 1924, Serial 170.684 .235, and in GreatBritain January 6, 1923- This invention has reference to ships anchors.

' IVith heavy anchors of the kind referred to, weighing many tons, it isfound that fractures take place in lowering it and striking the bottom;and while various means have been proposed to obviate this defect, suchmeans have not proved satisfactory in practise, and it is still foundthat the damage or fracture takes place; and the chief object and effectof the invention is to provide improvements in connection with suchanchors which will obviate this defect or deficiency.

In the anchor according to this invention, the thrust of the trunnionsof oscillation, whether cylindrical or spherical, when an anchor islowered, and strikes the bottom, and the jar of the shank on thetrunnions and head resulting therefrom, is taken by the metal of thehead proper which projects beyond the back or the plane of the trippers,and similarly, the strain or thrust of the trunnions on the anchor whenin use, is taken by the metal of the body of the anchor as usual, i. e.by the metal which lies below the outer plane of the trippers; so thatthe solid metal of the head in both directions, receives the whole ofthe strain; and the con struction by which this is accomplished isillustrated by the drawings which show several modifications of suchconstructions.

Figure 1 is an elevation partly in section; Figure 2 is a plan; andFigure 3 a cross section. Figure 4 is an elevation, and Figure 5 an endview showing another modification,

Figure 6 an elevation; and Figure 7 a cross section of a modification.

Figure 8 is an elevation, and Figure 9 a plan showing an anchor of theball and socket type.

In the drawings, 1 is the shank, and 2 are the trunnions connected withthe shank, which project out from the sides of same, and by means ofwhich the head is connected to the shank, and is held. 3 represents thehead of the anchor, of which 4 are the trippers, 5 the crown part whichlies outside or beyond the general plane of the tripper portions 4. 6are the arms, cast in one with the head; and 7 are the sockets orbearings within which the trunnion portions 2 of the shank 1 fit andlie.

The holding blocks or parts by means of which the shank end or head andthe anchor head are, held in position, are marked 8, and the holes inthe head in which they fit and through which they pass, 9.

In Figures 1 to 3, the holes 9 in the crown 5 and pins or blocks 8, arerectangular, and when the blocks are in position, their inner ends liedirectly above the trunnions 2, and so hold them down in position intheir bearings or sockets 7; the inner ends of the blocks being cut awayand made concave to correspond with the cylindrical trunnions 2, asshown.

Above the socket 7 Fig. 1, the crown 5 is carried inwards at 10, anddirectly overhangs the space above the sockets 7; and the upper portionsof the blocks or bars 8 lie in contact with this part .10. The parts 10thus receive part of the stress which is received by and transmitted tothem from the trunnions 2, when the anchor head drops on to the bottomwhen lowered.

Owing to the pins or bars being partly held or embedded in the crownportion of the anchor head, this latter portion will also take a part ofthe thrust; and prevent the pins or bars becoming bent. Thischaracteristic applies generally to the various modifications ofconstruction of anchor herein described.

The blocks may be of any suitable sectlon.

The trunnion 2 is passed through the shank eye when the latter is inline with the hole 9, and then lowered, and the blocks 8 inserted andsecured by bolts 12.

In Figures et and 5, the pin 2 is extended at each end which comeagainst the flanges 18; and a notch is provided in the trunnion, intowhich a projection 14 fits. The blocks 8 fitting in sockets 7 lie on aportion of the trunnion 2, and are held in position by rivet or bolt 12.

The trunnion 2 is passed through the shank as in Figures 1 to 3, and issecured by rivets 15.

In Figures 6 and 7 the trunnion pin 2 is held in position by the holdingblocks 8. The metal 'part 10 of the crown as shown lies directly overthe upper surface of the trunnion 2, and takes the impact from same whenstriking the bottom.

In this form of the invention, the block 8 on each side may be a singleblock as indicat-ed in Fig 6, or may be in two sections arranged side byside, as indicated in Fig. 7.

In Figures 6 and 7 the parts 10 of the crown 4 are carriedinwards abovethe holding blocks 8; and the ends ofthe blocks 8 lie over the trunnion.In Figure 7 two forms of blocks 8 are shown.

In Figures 8 and 9, the ball trunnion portions 2 of the shank is held inposition by the inwardly projecting endsof' the holding blocks 8.

What is claimed 1 is 1. An anchor-wherein the trunnion ofthe shankis'held 'downin position by blocks or bars inserted in holes in the crownextending in a direction: parallel with the axis of the trunnionyandtheinnerends of" the blocks being extended over. the trunnions on thecrown side, and c the inetalt of the crown of the anchor lies directlyunder said ends.

2. An anchor including a shank having the trunnion thereof mounted inthe crown, and means fitted in sockets in the crown and extending in adirection parallel with the axis of the trunnion to engage and interfitwith said trunnion, the metal of the crown lying directly under saidmeans.

3. An anchor wherein the trunnion of the shankis held down and againstaxial displacement by blocks fitted in sockets in the crown, with saidsockets extending in a direction parallel with the axis of the trunnion,the metal of the crown lying directly under said blocks.

Intestimony whereof We have signed our names to this-specification.

ARTHUR EDIVARD OSBORN. WILLIAM NORMAN.

